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在低雷诺数 Ｋε双方程紊流模型程序基础上，通过引进一种离散孔气膜冷却的喷射模型，预测了涡轮叶片上有冷气出流情况下的冷却效率，包括对不同吹风比， 不同二次流与主流的密度比，不同主流紊流度，不同展向孔间距，单排孔不同孔排位置及多排孔同时有冷气出流等多种情况，总结出了喷射模型中两个重要参数的变化规律，计算结果与实验数据符合程度良好。
On the basis of the low Reynolds number Kε two-equation turbulence model program, the cooling efficiency of the turbine blades under the condition of cold air outflow is predicted by introducing a jet cooling model with discrete hole film cooling. The results show that for different blowing ratios, Different secondary flow and mainstream density ratio, different mainstream turbulence, different exhibition to the hole spacing, hole row holes with different positions and multiple rows of holes at the same time have air-conditioning and other cases of cold air outflow, summed up the injection model in two The change rule of important parameters, the calculated results are in good agreement with the experimental data.